Finding the Fourth Proportional to 42,450.75, 63,305.55 and 37,210.05

Step by Step Solution

1. Step 1: Write the proportion equation
   42,450.75 : 63,305.55 = 37,210.05 : x
2. Step 2: Convert to fraction form
   42,450.75/63,305.55 = 37,210.05/x
3. Step 3: Cross multiply
   42,450.75x = 63,305.55 × 37,210.05
4. Step 4: Simplify right side
   42,450.75x = 2,355,602,680.78
5. Step 5: Solve for x
   x = 2,355,602,680.78/42,450.75
6. Step 6: Final answer
   x = 55,490.25